(2S,4R)-4-Benzyloxymethyl-2-tert-butyl-4-(3-methyl-but-2-enyl)-5-oxo-oxazolidine-3-carboxylic acid allyl ester
(2S,4R)-4-(4-Benzyloxy-benzyl)-2-tert-butyl-4-(3-methyl-but-2-enyl)-5-oxo-oxazolidine-3-carboxylic acid allyl ester
(2S,4R)-4-Benzyl-2-tert-butyl-4-(3-methyl-but-2-enyl)-5-oxo-oxazolidine-3-carboxylic acid allyl ester
(R)-2-Allyloxycarbonylamino-2-benzyl-5-methyl-hex-4-enoic acid
(R)-2-Allyloxycarbonylamino-2-benzyl-5-methyl-hex-4-enoic acid methyl ester